Martins in the Amazon

Every year, before migrating north, hundreds of thousands of swallows gather on a small island in the Rio Negro, in the municipality of Iranduba – AM.


Stories of a feather

As birds’ feathers grow, they accumulate various substances and elements present in the bloodstream. These substances can give us clues about the birds’ feeding, location and health while the feather was developing.

We are all scientists

Did you know that the entire population can contribute to the scientific knowledge? Leisurely observing nature is a means of popularizing knowledge and contributing to the collection of information about the environment. We seek to promote the conservation of the purple martins together with birdwatchers.



Santos C O, Branco J M, Belotti M C T D, Abilleira P, Sigrist J, Fischer J, Lima L M, Cohn-Haft M & Hingst-Zaher E (2021).
Branco JM, Hingst-Zaher E, Jordan-Ward R, Dillon D, Siegrist J, Fischer JD, Schiesari L, von Hippel FA & Buck CL (2022).